if (enable_model-checking AND (NOT ("cxx_std_14" IN_LIST known_features)))
message(WARNING "C++14 not found. The model-checker will use a slow hash function. You should upgrade your compiler")
if (enable_model-checking AND (NOT ("cxx_std_14" IN_LIST known_features)))
message(WARNING "C++14 not found. The model-checker will use a slow hash function. You should upgrade your compiler")